body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    margin: 0;
    background-color: #f4f4f4;
}
.all {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    width: 1200px;
    border-radius: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.user_left {
    width: 40%;
    padding-right: 20px;
    border-right: 1px solid #ddd;
}
.user_left h4{
    margin: 10px 0;
}
.user_left h3 {
    margin: 20px 0;
    text-align: center;

}
.user_head {
    text-align: center;
    margin-bottom: 20px;
    padding-left: 30px;
}
.head-pic {
    background: url("../img/people.png");
    width: 80px;
    height: 80px;
    border-radius: 50%;
    float: left;
    padding-right: 30px;
}
.head_have p {
    margin: 15px 0;
}
.head_left{
    float: left;
    text-align: center;
    padding-left: 100px;
    padding-right: 100px;
    border-right: 2px solid gray;
}
.head_right{
    text-align: center;
}
.content {
    width: 60%;
}
.content h2 {
    padding-left: 20px;
    margin-bottom: 20px;
}
.user_right {
    padding-left: 100px;
    width: 60%;
    align-content: center;
    font-size: 1em;
    line-height: 1.5em;
}
.user_right img{
    width: 40px;
    height: 40px;
    border-radius: 50%;
}
.user_right label {
    display: block;
    margin-bottom: 10px;
}
.user_right input[type="text"], .user_right textarea {
    width: 100%;
    padding: 0.5em;
    border: 1px solid #ccc;
    border-radius: 3px;
    background-color: #dfdbdb;
}
.user_right textarea {
    resize: vertical;
    min-height: 80px;
}
.back, .submit {
    width: 100px;
    height: 30px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}
.submit {
    background-color: #6e78ff;
    color: #fff;
    margin-left: 20px;
}
.submit:hover {
    background-color: #4b56e9;
}
.back {
    background-color: #ddd;
    color: #000;
}
.back:hover {
    background-color: #ccc;
}